Monochromatic cathode ray tube.

摘要

A faceplate arrangement for a monochromatic cathode ray tube includes a compound filter disposed between the faceplate and a light scattering luminescent screen. The compound fitter includes a multilayer interference edge filter adjacent the screen and a multilayer matching fitter adjacent the faceplate. The edge filter reflects back into the screen light rays received from the screen which would contribute to halo, and the matching filter matches the optical admittances of the edge filter and the faceplate.